1、9+4= 13-9=,13,4,12-9=,3,15-9=,6,14-9,17-9,15-9,18-9,11-9,16-9,12-9,13-9,4,3,6,5,8,7,2,9,14-9,17-9,18-9,11-9,16-9,12-9,13-9,4,3,6,5,8,7,2,9,15-9,14-9,17-9,15-9,18-9,16-9,12-9,13-9,4,3,6,5,8,7,9,2,11-9,14-9,17-9,15-9,18-9,11-9,16-9,12-9,3,6,5,8,7,2,9,4,13-9,17-9,15-9,18-9,11-9,16-9,12-9,13-9,4,3,6,5,8
2、,7,2,9,14-9,14-9,17-9,15-9,18-9,11-9,12-9,13-9,4,3,6,5,8,2,9,7,16-9,14-9,17-9,15-9,11-9,16-9,12-9,13-9,4,3,6,5,8,7,2,9,18-9,14-9,15-9,18-9,11-9,16-9,12-9,13-9,4,3,6,5,8,7,2,9,17-9,14-9,17-9,15-9,18-9,11-9,16-9,4,6,5,8,7,2,9,13-9,3,12-9,5,8,7,2,9,17-9,14-9,11-9,18-9,16-9,你们真棒！,1,5,4,8,10,3,6,9,7,2,11,15,17,14,12,16,13,18,2,5,4,9,7,6,8,3,1、啄木鸟捉虫. (有错的改在括号里)(1)17-9=9 (2)16-9=7( ) ( )(3)4+9=13 (4)14-2=16( ) ( )(5)18-9=11 (6)8+7=15( ) ( ),课堂检测,2、智力冲浪,8,12,9,15,17,
